CN103796873B - Power supply unit control setup and possess the IC engine-powered vehicles of power supply unit control setup - Google Patents
Power supply unit control setup and possess the IC engine-powered vehicles of power supply unit control setup Download PDFInfo
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- CN103796873B CN103796873B CN201280032511.0A CN201280032511A CN103796873B CN 103796873 B CN103796873 B CN 103796873B CN 201280032511 A CN201280032511 A CN 201280032511A CN 103796873 B CN103796873 B CN 103796873B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
- B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
- B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
- B60Q1/0088—Details of electrical connections
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/041—Controlling the light-intensity of the source
- H05B39/044—Controlling the light-intensity of the source continuously
- H05B39/047—Controlling the light-intensity of the source continuously with pulse width modulation from a DC power source
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
- Control Of Eletrric Generators (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
Abstract
A kind of power supply unit control setup of IC engine-powered vehicles is proposed, possess lamp driving switch and control the energising control part of lamp driving switch, this lamp driving switch is by the lamp drive current on-off by being supplied to the head light of vehicle by the battery of the output of ICE-powered alternating current generator charging.Energising control part is configured to, when constant, lamp drive current can be remained on the connection of the lamp driving switch of the value of the charging that can not hinder battery, the dutycycle disconnected is regular dutycycle, with regular dutycycle, lamp driving switch is connected, disconnect and controlling, the connection of the lamp driving switch under regular dutycycle is interrupted when the deceleration of combustion engine, disconnect and controlling, when only carrying out engine retard during the limited time, lamp energising controls, lamp driving switch control rule is become to make the decline of the light quantity in order to suppress head light and the lamp drive current of necessity flows into head light.
Description
Technical field
The present invention relates to the power supply unit control setup of the power supply unit controlling the IC engine-powered vehicles such as automotive bicycle or cross-country car and possess the IC engine-powered vehicles of this power supply unit control setup.
Background technology
In the IC engine-powered vehicles such as automotive bicycle or cross-country car, in order to power to various Denso product, be provided with the power supply unit of the alternating current generator rotated by internal combustion engine drive and the battery being exported charging by it, supply electric current by the output of this power supply unit to loads such as head lights.In the vehicle being provided with such power supply unit, in order to battery be maintained the state that is appropriately charged and be provided with power supply unit control setup, this power supply unit control setup possesses battery charging control section and energising control part, it is setting value that the charging of battery is controlled to the terminal voltage keeping battery by battery charging control section in the running of combustion engine, and energising control part controls the energising to load.
As the alternating current generator carried on the IC engine-powered vehicles of automotive bicycle or cross-country car etc., special use to possess form the Magnmet rotor in magnetic field by permanent magnet and there is the magnet-type alternating current generator of stator of power coil.Increase if magnet-type alternating current generator has load current, the steep drop characteristic that its output voltage declines.Therefore, by possess by ICE-powered magnet-type alternating current generator and by by its export charging battery power supply unit output and make in the vehicle of head light lighting, if when the low speed of driving engine or idling time in head light, flow through larger rated consumption electric current in advance, then the output voltage of magnet-type alternating current generator declines and also lower than cell pressure significantly.In this case, owing to can not flow through charging current from electrical generator to battery, not flowed into larger electric current by under the state of charging from battery to head light so become at battery, battery consumes tempestuously.If such state occurs continually, then battery likely becomes over-discharge state.
In the power supply unit control setup of the IC engine-powered vehicles shown in patent documentation 1, by arranging lamp driving switch between battery and head light, on-off control is carried out to this lamp driving switch, PWM(PulseWidthModulation is carried out to lamp drive current: pulse width modulation) control.If formed like this, then by when no longer carrying out the low speed of driving engine of charging of battery or idling time the dutycycle that PWM controls is set in less value to limit the electric current flowed into from battery to head light, limit the discharge current of battery and suppress the consumption of battery.
Patent documentation 1: International Publication WO2008/102378 publication.
Power supply unit control setup according to patent documentation 1, because the output voltage at electrical generator declines, when no longer carrying out the low speed of the driving engine of the charging of battery or electric current from battery to head light that flow into from of idling limit, so can suppress the consumption of battery.
But, when the invention according to patent documentation 1, such as in order to make vehicle stop and when being applied with braking, when in the process declined at the rotative speed of combustion engine close to idling rotative speed time, be less value by the dutycycle that the on-off of lamp driving switch occurs, the problem that reduces of the light quantity of head light.Particularly, when power-transfer clutch being disconnected when chaufeur stopped vehicle and carry out making combustion engine be the running of idling mode, by the phenomenon that the light quantity that head light occurs significantly sharply reduces.
Summary of the invention
The object of this invention is to provide a kind of power supply unit control setup of IC engine-powered vehicles and possess the vehicle of this device, can prevent the light quantity of head light in the process of engine brake from reducing sharp, during specified time, maintaining higher light quantity.
The present invention with the power supply unit control setup of IC engine-powered vehicles for object, the power supply unit control setup of described IC engine-powered vehicles possesses: battery charging control section, controls to possess by the charging of the above-mentioned battery of the power supply unit of the IC engine-powered vehicles of battery driving the ICE-powered magnet-type alternating current generator of vehicle and charged by the output of this alternating current generator; Lamp driving switch, by from above-mentioned battery to the head light of above-mentioned vehicle supply lamp drive current on-off; Lamp energising control part, make to be set as that being remained on by above-mentioned lamp drive current can be regular dutycycle from the dutycycle of the on-off of the lamp driving switch of the value of the scope of the output voltage more than terminal voltage of above-mentioned magnet-type alternating current generator generation battery, and carry out based on on-off control by this regular dutycycle to above-mentioned lamp driving switch, PWM control is carried out to above-mentioned lamp drive current.
In the present invention, in the process that its rotative speed declines towards idling rotative speed when the deceleration of combustion engine, the on-off of the lamp driving switch that lamp energising control part interrupts under regular dutycycle controls, when only carrying out engine retard during the limited time, lamp energising controls, and lamp driving switch control rule is become to make the decline of the light quantity in order to suppress head light and the lamp drive current of necessity flows into head light.
If formed as described above, then when the deceleration of combustion engine the rotative speed of driving engine in the close process of idling rotative speed, for the output voltage of magnet-type alternating current generator is remained on battery terminal voltage more than (for carrying out the charging of battery without barrier) regular dutycycle under the on-off of lamp driving switch control to interrupt, when carrying out engine retard, lamp energising controls, and lamp driving switch control rule is become to make the decline of the light quantity in order to suppress head light and the lamp drive current of necessity flows into head light.Thus, when can preventing its rotative speed when the deceleration of driving engine from declining towards idling rotative speed, the light quantity of head light sharply reduces, and eliminates the flicker of head light, guarantees higher light quantity during specified time.In addition, because lamp energising controls only to carry out during the limited time during engine retard, after this control terminates, the charge volume of battery can be made to increase, so the overdischarge of battery can be prevented.
Above-mentioned lamp energising control part both can pass through to carry out on-off control with the setting dutycycle of the large value of regular dutycycle when being set as the idling than combustion engine to lamp driving switch, when carrying out engine retard, lamp energising controls, also can by lamp driving switch be remained on on-state, when carrying out engine retard, lamp energising controls.
About other technical scheme of the present invention, disclose in the illustrating of working of an invention mode described later.
According to the present invention, due in the process that its rotative speed when the deceleration of combustion engine declines towards idling rotative speed, lamp energising control part interrupts the connection of the lamp driving switch be used under the regular dutycycle of the charging carrying out battery without barrier, disconnect and controlling, when only carrying out engine retard during the limited time, lamp energising controls, lamp driving switch control rule is become to make the decline of the light quantity in order to suppress head light and the lamp drive current of necessity flows into head light, so the phenomenon that when can preventing entering tickover in the process of engine retard, the light quantity of head light sharply reduces occurs, eliminate the flicker of lamp, higher light quantity is guaranteed during specified time.In addition, because lamp energising during engine retard controls only to carry out during the limited time, so can prevent battery from becoming over-discharge state.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the structure of the power supply unit control setup represented involved by one embodiment of the present invention;
Fig. 2 represents in power supply unit control setup involved in the present invention, the outgoing current of alternating current generator and the current sinking of head light relative to rotative speed change and lamp drive current is carried out to the diagram of curves of an example of change of the dutycycle when PWM control;
The diagram of curves of Duty ratio control when Fig. 3 is the vehicle stopping for illustration of carrying out in the present invention;
Fig. 4 is the diagram of curves of the definition represented for illustration of the dutycycle used in this manual;
Fig. 5 is the FBD of the structure representing the lamp energising control part used in one embodiment of the present invention;
Fig. 6 is the diagram of circuit of an example of the algorithm of the program representing the lamp energising control part shown in pie graph 5 and microprocessor is performed;
Fig. 7 is the FBD of the structure representing the lamp energising control part used in another embodiment of the present invention;
Fig. 8 is the diagram of circuit of another example of the algorithm of the program representing the lamp energising control part shown in pie graph 7 and microprocessor is performed;
Fig. 9 is the FBD of the structure representing the lamp energising control part used in other embodiments of the present invention;
Figure 10 is the diagram of circuit of other example of the algorithm of the program representing the lamp energising control part shown in pie graph 9 and microprocessor is performed;
Figure 11 is the FBD of the structure representing the lamp energising control part used in other embodiments of the present invention;
Figure 12 is the diagram of circuit of other example of the algorithm of the program representing the lamp energising control part of formation shown in Figure 11 and microprocessor is performed;
Figure 13 is the FBD of the structure representing the lamp energising control part used in other embodiments of the present invention;
Figure 14 is the diagram of circuit of other example of the algorithm of the program representing the lamp energising control part of formation shown in Figure 13 and microprocessor is performed.
Description of reference numerals:
1: alternating current generator, 2: battery, 3: head light, 4: power supply unit control setup, 5: control rectifying circuit, 6: battery charging control section, 7: lamp driving switch, 8: lamp energising control part, 11: rotative speed testing agency, 12: engine retard decision mechanism, 13: time meter, 14: regular dutycycle arithmetical organ, 15: setting dutycycle determination means, 16: dutycycle selection mechanism, 17: switching drive signal output circuit, 19: dutycycle determination means when accelerating to control, 20: battery voltage detection mechanism, 21: rotative speed decision mechanism, 22: started decision mechanism, 23: dutycycle determination means during first lighting.
Detailed description of the invention
Hereinafter, with reference to the accompanying drawings of embodiments of the present invention.In embodiment shown below, if IC engine-powered vehicles is automotive bicycle.Fig. 1 is the accompanying drawing representing one embodiment of the present invention, in the figure, 1 is by the magnet-type alternating current generator (below also referred to as alternating current generator) driving the internal combustion engine drive of automotive bicycle to rotate, 2 by the batteries of the output of alternating current generator 1 charging, and 3 is head lights of the vehicle applying lamp drive current and lighting from battery 2.In addition, 5 is be made up of the mixed electrical bridge circuit of diode and thyristor, the control rectifying circuit supplied as charging current to battery 2 by the output rectification of alternating current generator 1 and using its outgoing current, 6 is that control rectifying circuit 5 is controlled to the battery charging control section voltage at battery 2 two ends being remained on setting value, 7 is the current turns ON will supplied to head light 3, the lamp driving switch disconnected, 8 is that the dutycycle specified is connected lamp driving switch 7, disconnect and controlling, lamp drive current PWM is controlled to the lamp energising control part of the value remaining on the charging that can not hinder battery 2.
In the present embodiment, forming by alternating current generator 1 and battery 2 power supply unit supplying electric power to the various Denso product comprising head light 3, forming by controlling rectifying circuit 5, battery charging control section 6, lamp driving switch 7 and lamp energising control part 8 the power supply unit control setup 4 controlling power supply unit.
If illustrated in greater detail, then magnet-type alternating current generator 1 is made up of rotor and stator, synchronously in armature coil 1a, single-phase alternating-current voltage/AC voltage is encouraged with the rotation of combustion engine, wherein, rotor is rotated by the crankshaft drives of the not shown combustion engine be mounted on the car body of automotive bicycle, and stator is formed by being wrapped in by single-phase armature coil 100 on the armature core that has via the gap magnetic pole piece opposed with the magnetic pole of rotor.The characteristic of the output voltage relative to its outgoing current of magnet-type alternating current generator has steep drop characteristic, and along with the increase of outgoing current, output voltage declines.Thus, when taking to form power supply unit by magnet-type alternating current generator with by the battery of the output of this magnet-type alternating current generator charging, on the two ends of battery when the structure of connected load, when low speed rotation, if flow through larger electric current in the load on the two ends being connected to battery, then the output voltage of alternating current generator declines, lower than the terminal voltage of battery, no longer can charge to battery.
Power supply unit control setup 4 is formed by with lower part: control rectifying circuit 5, be made up of, the output rectification of alternating current generator 1 supplied as charging current to battery 2 by this outgoing current the mixed electrical bridge circuit of diode and thyristor; Battery charging control section 6, is controlled to control rectifying circuit 5 and the voltage at the two ends of battery 2 is remained on setting value; Lamp drives with switch 7, is located between battery 2 and head light 3, by the lamp drive current on-off supplied to head light 3; Lamp energising control part 8, carries out on-off control with the dutycycle specified to lamp driving switch 7, lamp drive current PWM is controlled to the value remaining on the charging not hindering battery 2.
Control rectifying circuit 5 and be connected to diode D1 and D2 on earth circuit and anode is connected on the negative electrode of diode D1 and D2, negative electrode is formed by the thyristor Th1 of common connection and Th2 by anode is common.In this control rectifying circuit, the point of connection of the anode of the negative electrode of diode D1 and D2 and thyristor Th1 and Th2 becomes AC input terminal 5a and 5b, and the common point of connection (ground connection) of the common point of connection of the negative electrode of thyristor Th1 and Th2 and the anode of diode D1 and D2 becomes positive side DC output terminal 5c and minus side DC output terminal 5d respectively.AC input terminal 5a and 5b is connected on the lead-out terminal 1a of a side of the alternating current generator 1 and lead-out terminal 1b of the opposing party, on the positive terminal that DC output terminal 5c and 5d is connected to battery 2 and negative terminal.
The MOSFET of the N channel-type that lamp driving switch 7 is connected on the positive terminal of battery 2 by source electrode is formed, between its drain electrode and ground connection, be connected with head light 3.
Battery charging control section 6 has the known structure possessing voltage detecting circuit and IGBT group control part, this voltage detecting circuit detects the voltage (cell pressure) at battery 2 two ends, this IGBT group control part controls the supply of energizing signal to thyristor, when the cell pressure detected by voltage detecting circuit gives energizing signal less than during setting value to the grid of thyristor Th1 and Th2, stop energizing signal to the supply of thyristor Th1 and Th2 when the cell pressure detected becomes more than setting value.Control rectifying circuit 5 when cell pressure less than setting value, give energizing signal from battery charging control section to thyristor Th1 and Th2 time, in these thyristor, be applied in clockwise direction voltage between anode cathode thyristor becomes on-state, is supplied by the rectified output current of alternating current generator 1 as charging current to battery 2.If cell pressure becomes more than setting value and energizing signal and stops to the supply of thyristor Th1 and Th2, then thyristor Th1 and Th2 becomes at respective anode current and keeps the moment of below electric current to become off-state, stops charging current to the supply of battery 2.Battery charging control section 6 carries out these actions by making control rectifying circuit 5, is controlled to by cell pressure and remains on setting value.When the rated value of cell pressure is 12 ［ V ］, the setting value of cell pressure is such as set to 14.5 ［ V ］.
In addition, the battery charging control section 6 used in the present embodiment is except carrying out above-mentioned control, when detect carried out the operation by vehicle acceleration by chaufeur time, in order to the load alleviated from the applying of alternating current generator 1 internal combustion engine, acceleration capability is improved, also carry out stopping energizing signal stopping to the supply of thyristor Th1 and Th2 charging during the acceleration of the charging of battery stopping controlling.Whether to carry out accelerating operation, whether can exceed setting value by the rotative speed that monitors combustion engine, the escalating rate of observing this rotative speed, or monitored that the displacement of accelerator operation parts of the accelerator handle be located in vehicle etc. detects.The rotative speed of combustion engine can detect according to the output frequency of alternating current generator 1.In addition, the position that the necessary crankshaft angle information rotary angle position be provided with whenever crank shaft arrives setting when the control etc. in order to obtain at the ignition timing carrying out combustion engine then produces the impulse deviser of pulse, the rotative speed of driving engine can be detected by the origination interval detecting the pulse that this impulse deviser produces.
In addition, if due to battery charging control section 6 is configured to, when having made it more gently carry out when constant traveling to accelerate operation, charging stops controlling when also accelerating, then likely no longer can carry out the charging of battery fully, so charging stops controlling when preferred battery charging control section 6 is only accelerated when having carried out the acceleration ratio more than with the acceleration ratio of setting and anxious for the vehicle acceleration accelerated being operated (accelerator operation), and when not accelerating when more gently having carried out accelerating to operate, charging stops controlling.
Known according to the above description, in order to form battery charging control section 6, the testing agency of the detection of the acceleration operation with or without cell pressure and driving engine is carried out in the pattern of wants, carry out judging that more than the acceleration ratio that the judgement process and judging whether whether cell pressure has exceeded setting value sets has carried out accelerating the various mechanisms judging process of the judgement process of operation etc., and carry out producing or eliminate the various functional realiey mechanism of mechanism etc. of process of the energizing signal that provides to thyristor Th1, Th2 etc. based on judged result.These mechanisms both can be made up of analogous circuit, also can consist of task of making microprocessor put rules into practice.When be provided with combustion engine ignition device or in order to control fuel injection amount etc. and arrange ECU(electronic control unit), the program that can put rules into practice by making to be located at the microprocessor in this ECU realizes for forming the necessary mechanism of battery charging control section.In addition, carry out the battery charging control section self of control action as described above due to well-known by those skilled in the art, so omit about its circuit structure, the detailed description of algorithm etc. of task process that makes microprocessor perform.
In the present embodiment, employ thyristor as in order to the charging current supplied to battery on-off being located at the switching mechanism controlled in rectifying circuit 5, but other the thyristor such as MOSFET or bipolar transistor also can be used to form control rectifying circuit 5.In addition, when using magnet generator as alternating current generator 1, also can replace control rectifying circuit 5, use possess to the output of electrical generator 1 carry out rectification rectifying circuit and when cell pressure has exceeded setting value by the regulating control of the output of this rectifying circuit by the known short-circuit type of the output short-circuit circuit of semiconductor switch short circuit.
Lamp energising control part 8 is that lamp driving switch 7 on-off is controlled to the part remaining on the value of regulation from the aviation value of the lamp drive current IL flowed into head light 3 via lamp driving switch 7 by battery 2.Lamp energising control part 8 carries out PWM control to lamp drive current based on following: can produce the dutycycle Dn of the on-off of the lamp driving switch 7 of the value of the scope of the output voltage of more than the terminal voltage of battery 2 as regular dutycycle from magnet-type alternating current generator 1 by being set as lamp drive current to remain on, carrying out on-off control with this regular dutycycle to lamp driving switch.As long as owing to carrying out PWM control with regular dutycycle to lamp driving switch, the outgoing current of magnet-type alternating current generator would not become the size making the output voltage of this electrical generator drop to below the terminal voltage of battery, so the charging of battery can be carried out with no obstacle.
In the present embodiment, the control part 8 that is energized by lamp is configured to, when the deceleration of combustion engine, its rotative speed is in the close process of idling rotative speed, when the rotative speed of driving engine drops to the setting rotative speed set higher than idling rotative speed, the on-off of interrupting the lamp driving switch under regular dutycycle controls, when only carrying out engine retard during the limited time, lamp energising controls, and carries out on-off control with the setting dutycycle Ds of the large value of regular dutycycle Dni when being set as the idling than combustion engine to lamp driving switch 7.The value that regular dutycycle Dn during the idling that setting dutycycle Ds is set in than combustion engine is fully large.Lamp energising control part 8, in order to the lamp energising control when carrying out above-mentioned engine retard, needs the rotating speed data of combustion engine.In the present embodiment, in order to be provided to lamp energising control part 8 by the rotating speed data of combustion engine, the information of the output voltage of alternating current generator 1 inputs to lamp energising control part 8.Lamp energising control part 8 obtains the rotating speed data of combustion engine according to the output frequency of alternating current generator 1.
In this manual, as meaning, the word of the ratio of switch 7 shared by the one-period that circulates relative to the on-off of switch 7 during on-state is used the dutycycle D of the on-off of lamp driving switch.Namely, as shown in Figure 4, during the connection of setting switch 7 as Ton, off period be Toff, the one-period of on-off circulation is T(=Ton+Toff) time, will by D=(Ton/T) value that provides of × 100 ［ % ］ is as the dutycycle D of the on-off of lamp driving switch.
With reference to Fig. 2, the figure of the fundamental operation of the lamp energising control part 8 of the power supply unit control setup represented involved by present embodiment, in the figure, Ig represents that IL schematically represents the lamp drive current flowed into head light 3 via lamp driving switch 7 from battery 2 from alternating current generator 1 via the outgoing current controlling rectifying circuit 5 output.In addition, Dn is an example of the regular dutycycle of the on-off of lamp driving switch 7, and N is an example of the rotative speed ［ r/min ］ of the combustion engine driving alternating current generator 1.Regular dutycycle Dn is decided to be under each rotative speed N of combustion engine, remains on the value that can not hinder the charging of battery 2 (charging current can be made to flow without barrier) by from battery 2 via lamp driving switch 7 to the lamp drive current IL that head light 3 flows into.
In the example in the figures, regular dutycycle Dn is periodically increased along with the rising of rotative speed N, regular dutycycle Dn during idling is set as 50 ［ % ］, and regular dutycycle Dn when being 2000 ［ r/min ］ by the rotative speed N of driving engine is set as 90 ［ % ］.In fig. 2, the electric current I c of the outgoing current Ig of electrical generator and the difference of lamp drive current IL becomes the charging current flowed into battery 2.In the present embodiment, if the rotative speed that the starting of driving engine completes is 500 ［ r/min ］, if idling rotative speed is Ni(>800 ［ r/min ］).
Drive singal Vd wavy for the rectangle changed between high level and low-level with the regular dutycycle Dn calculated, relative to the regular dutycycle Dn of rotative speed N computing of driving engine, supplies to the grid of the MOSFET being formed lamp driving switch 7 by lamp energising control part 8.Thus, lamp driving switch 7, with regular dutycycle Dn on-off, carries out PWM control to the lamp drive current IL supplied from battery 2 to head light 3.By this control, prevent the outgoing current of magnet-type alternating current generator 1 excessive, its output voltage drops to below the terminal voltage of battery 2, prevents the state that the charging that battery occurs no longer is carried out.
Use in the present embodiment lamp energising control part 8 such as make car retardation or stop when etc., by in the process of engine retard, when the rotative speed of combustion engine drops to the setting rotative speed being set to and only exceeding regulation rotative speed than idling rotative speed, time meter is made to start the measurement of setting-up time, carry out the measurement of setting-up time at time meter during, the dutycycle of the on-off of lamp driving switch is fixed on setting dutycycle.
If formed like this, then when can make to carry out engine retard, the setting of the time that lamp energising controls is easy.In addition, by changing the time making time meter measure, the time that when carrying out engine retard, lamp energising controls can freely be adjusted.
Preferred above-mentioned setting dutycycle is set as equal with the regular dutycycle set under rotative speed.If setting dutycycle is preset like this, then head light flicker when can preventing the lamp energising when starting engine retard from controlling.
Lamp energising control part 8, also preferably when the measurement of setting-up time completes, makes dutycycle gradually change towards regular dutycycle during idling.
If formed like this, then owing to can prevent the light quantity of head light from reducing sharp, so chaufeur can not be made to make head light dim light gradually with entertaining awkward sense when terminating engine retard when lamp energising control.
The lamp energising control part 8 used in the present embodiment is when chaufeur has carried out making the operation of vehicle start, as shown in Figure 3, after the rotative speed N of driving engine reaches 2000 ［ r/min ］, the dutycycle D of the on-off of lamp driving switch 7 is made to rise to 90 ［ % ］ from 50 ［ % ］, dutycycle D is switched to 95 ［ % ］ when rotative speed N reaches 3000 ［ r/min ］, in addition, when rotative speed N reaches 4000 ［ r/min ］, dutycycle D is switched to 100 ［ % ］.Lamp energising control part 8 is such as when chaufeur is applied with braking to make vehicle stop, engine retard, its rotative speed is in the close process of idling rotative speed, when rotative speed N drops to the setting speed Ns set higher than idling rotative speed, carry out making time meter measure the action of setting-up time Tc, during time meter carries out this measurement action, when carrying out engine retard, lamp energising controls, by the connection of lamp driving with switch 7, it is 90% in the example in the figures that the dutycycle D disconnected is fixed on the setting dutycycle Ds(setting higher than the regular dutycycle (50 ［ % ］) during idling).In the present embodiment, setting dutycycle Ds is set as equal with the regular dutycycle set under rotative speed Ns.
If make lamp energising control part 8 carry out control as described above, then in the process such as vehicle stopped or slowing down, the rotative speed of driving engine declines, before regular dutycycle when the dutycycle of the on-off of lamp driving switch switches to idling, the on-off can interrupting the lamp driving switch under regular dutycycle controls, and carries out on-off control with the setting dutycycle Ds of the large value of regular dutycycle when being set as the idling than combustion engine to lamp driving switch.Thus, the phenomenon that the light quantity that its rotative speed can prevent head light in the close process of idling rotative speed when the deceleration of driving engine sharply reduces, prevents the flicker of lamp, during specified time, the light quantity of head light is remained on higher state.In addition, because lamp energising during engine retard controls only to carry out during limited time Tc, so can prevent battery from becoming over-discharge state.
The lamp energising control part 8 with function as described above can by making to realize being equipped on the program that the microprocessor that arranges in the ECU in vehicle puts rules into practice.Fig. 5 is the FBD of the example representing the function block formed on software when being realized above-mentioned lamp energising control part 8 by microprocessor.In Figure 5,11 is the rotative speed testing agencies of rotative speed detecting combustion engine, and in the present embodiment, the rotative speed of driving engine detects according to the output frequency of magnet-type alternating current generator 1 in this rotative speed testing agency.In addition, rotative speed testing agency 11 also can by the ignition timing etc. obtained in order to controlling combustion engine and the mechanism of the rotating speed data of the driving engine detected in addition form.
12 is engine retard decision mechanisms, according to the change of the rotative speed of the combustion engine detected by rotative speed testing agency 11, judge whether its rotative speed drops to the setting rotative speed being set as the value higher than idling rotative speed in the process of engine retard, 13 is time meters, the measurement of setting-up time Tc when being judged as that by engine retard decision mechanism 12 its rotative speed in the process at engine retard drops to setting rotative speed.In addition, 14 is regular dutycycle arithmetical organs, relative to the rotative speed N of the driving engine detected by rotative speed testing agency 11, lamp drive current IL can be remained on the regular dutycycle Dn of the value that can not hinder the charging of battery 2 (charging current can be made to flow without barrier) by computing.The computing of regular dutycycle Dn can be undertaken by the mapping graph (table) of the relation provided between the rotative speed N of driving engine and regular dutycycle Dn relative to rotative speed N retrieval.
15 is setting dutycycle determination means, and determine setting dutycycle Ds, this mechanism can be made up of the storing mechanism storing the setting dutycycle Ds preset.In addition, 16 is dutycycle selection mechanism, this selection mechanism is configured to, when being judged as that by engine retard decision mechanism 12 driving engine is not in deceleration, although and be judged as driving engine be slow down in but its rotative speed does not drop to setting rotative speed, when time meter 13 does not carry out timing action, the regular dutycycle Dn that selection is calculated by regular dutycycle arithmetical organ 14 is as the connection of lamp driving switch 7, the dutycycle D disconnected also exports, be judged as that driving engine drops to setting rotative speed in deceleration by engine retard decision mechanism 12, when time meter 13 carries out timing action, select setting dutycycle Ds as the connection of lamp driving with switch 7, the dutycycle D disconnected also exports.
Selected dutycycle D provides to switching drive signal output circuit 17 by dutycycle selection mechanism 16.The control terminal (be in the example in the figures the grid of MOSFET) of this drive singal to lamp driving switch 7 as being suitable for the drive singal (signal that rectangle is as shown in Figure 4 wavy) driving lamp driving switch 7, provides by switching drive signal output circuit 17 by the signal provided from dutycycle selection mechanism 16.In the example as shown in fig. 5, lamp energising control part 8 is formed by rotative speed testing agency 11, engine retard decision mechanism 12, time meter 13, regular dutycycle arithmetical organ 14, setting dutycycle determination means 15, dutycycle selection mechanism 16 and switching drive signal output circuit 17.
Represent the routine of the algorithm of the lamp energising control part shown in pie graph 5 and task process that microprocessor is performed in figure 6.Process shown in Fig. 6 performs when the task process timing occurred at a certain time interval arrives.If start this task process, then first in step S101, relative to the current regular dutycycle Dn of rotative speed N computing of combustion engine.Then, whether have dropped compared with when judging rotative speed N and previous task process in step s 102, enter step S103 when result is judged as not declining, dutycycle D is set to the regular dutycycle Dn calculated in step S101, terminates this process.
When have dropped compared with when being judged as rotative speed and previous task process in step s 102, entering step S104, judging that whether current rotative speed N is lower than setting rotative speed Ns.When its result is judged as that rotative speed N is setting more than rotative speed Ns, being emptied by the measurement value Tx of time meter in step S105 is 0, enters step S103, dutycycle D is set to the regular dutycycle Dn calculated in step S101, terminates this process.When being judged as that in step S104 the rotative speed N of driving engine is lower than setting rotative speed Ns, entering step S106, the measurement value Tx of time meter is only increased by 1, then judge whether the measurement value Tx of time meter reaches setting-up time Tc in step s 107.When its result is judged as that the measurement value Tx of time meter does not reach setting-up time Tc (when time meter does not complete the measurement of setting-up time), enter step S108, make dutycycle D for setting dutycycle Ds, terminate this process.When being judged as that the measurement that the measurement value Tx of time meter reaches setting value Tc(setting-up time completes in step s 107) time, enter step S109, regular dutycycle Dni when making dutycycle D be the idling of computing in step S101, terminates this process.
When based on algorithm shown in Fig. 6, form regular dutycycle arithmetical organ 14 by step S101, form engine retard decision mechanism 12 by step S102 and S104.In addition, dutycycle selection mechanism 16 is formed by step S103, S107, S108 and S109.And then, time meter control mechanism (not illustrating in Figure 5) is formed by step S105 and S106, time meter 13 is controlled to and arranges setting-up time when the rotative speed of driving engine drops to setting rotative speed Ns to time meter 13 and start its measurement by described time meter control mechanism, during time meter 13 carries out measuring the measurement action of setting-up time, when rotative speed N becomes setting more than rotative speed Ns, time meter 13 is emptied.
In the IC engine-powered vehicles being equipped with battery, when by vehicle acceleration, if carry out the charging of battery, then from alternating current generator, the load that driving engine applies is become heavy, so be difficult to avoid acceleration capability to decline.In order to solve such problem, battery charging control section be configured to, charging when carrying out the acceleration of the charging stopping battery when the operation carried out vehicle acceleration being detected stops controlling.When carrying out acceleration, charging stops controlling, due to the voltage drop of battery, if so the dutycycle that the PWM of lamp drive current controls is certain, then when when starting to accelerate, charging stops control, the drive current of head light reduces and glimmers, and has the situation making chaufeur entertain awkward sense.
So, stopping of charging when being configured to the acceleration of the charging carrying out when detecting the operation carried out vehicle acceleration stopping battery in battery charging control section controls, the control part that is preferably energized by lamp is configured to, charge when carrying out acceleration Duty ratio control when stopping accelerating when controlling, and dutycycle increased to and is set in dutycycle when charging when being about to start to accelerate stops the acceleration of the value of more than the regular dutycycle before control to control.
If formed so in advance, then when accelerating charging stop controlling and the voltage drop of battery time, the electric current that can prevent from flowing in head light reduces, so can prevent head light from glimmering.
Lamp energising control part both can be configured to use the mapping graph of rotative speed and relation when stopping controlling between dutycycle of charging providing and accelerate when controlling, by retrieving this mapping graph relative to rotative speed, decide dutycycle when above-mentioned acceleration controls, the dutycycle when dutycycle before also can being configured to stop controlling by the charging when being about to start to accelerate adds that certain value decides to accelerate to control.
Stopping of charging when being configured to the acceleration of the charging carrying out when the operation carried out vehicle acceleration being detected stopping battery in battery charging control section controls, lamp energising control part also can be configured to the voltage of supervision battery when the charging when carrying out accelerating stops controlling, determine dutycycle according to cell pressure, when being about to start to accelerate the light quantity of head light to be remained on, charging stops the light quantity before control.
The FBD of one example of the function block that Fig. 7 is formed when being and representing and use microprocessor to form lamp energising control part 8 in other embodiments of the present invention on software.In the present embodiment, charge when the battery charging control section 6 shown in Fig. 1 is configured to the acceleration carrying out the charging stopping battery when detecting the operation carried out vehicle acceleration and stop controlling.When charging stops controlling when having carried out the acceleration carrying out making the charging of battery to stop when accelerating operation, then because cell pressure declines, so the light quantity of head light 3 reduces, likely bring sense of discomfort to chaufeur.Present embodiment is charged when battery charging control section 6 carries out acceleration and is stopped preventing head light dim light when controlling.In the present embodiment, when when carrying out acceleration, charging stops controlling, Duty ratio control when lamp energising control part 8 accelerates, makes the dutycycle of the on-off of lamp driving switch 7 be increased to dutycycle when charging when being about to start to accelerate stops the acceleration of the value of more than the regular dutycycle before control to control.
In the embodiment shown in figure, except the structure shown in Fig. 5, dutycycle determination means 19 when being provided with the mechanism 18 that provides and accelerate control information and accelerating to control.Acceleration information is that when representing that battery charging control section 6 is just accelerated, charging stops the information controlling, and can obtain from battery charging control section 6.
The mechanism of dutycycle Da when dutycycle determination means 19 is the acceleration control of the value determining to have more than the regular dutycycle before charging when being about to start this acceleration stops controlling when charging stops controlling when carrying out accelerating when accelerating to control.Such as, in figure 3, when having carried out when the rotative speed N of driving engine is 3500 ［ r/min ］ accelerating, charging stops controlling, the dutycycle (such as 100%) that the regular dutycycle (such as 95%) when dutycycle Da is set as than 3500 ［ r/min ］ when dutycycle determination means 19 will speed up control when accelerating to control is large.When being about to start to accelerate, charging stops the regular dutycycle before control to be 100%, when acceleration is controlled, dutycycle Da is 100%.
The mapping graph of relation when dutycycle determination means 19 is by using the rotative speed that provides the combustion engine accelerated when controlling and above-mentioned acceleration to control when accelerating to control between dutycycle, retrieve mapping graph relative to the rotative speed N of combustion engine, dutycycle Da when determining acceleration control.
If charging stops the control of the dutycycle of carrying out the on-off increasing lamp driving switch when controlling when carrying out as in the present embodiment accelerating, even if then cell pressure declines because charging is stopped, due to the electric power to head light supply can be made not decline, so head light dim light when can prevent the charging when having carried out acceleration from stopping controlling.The structure shown in other structure with Fig. 5 of the lamp energising control part shown in Fig. 7 is same.
Represent the routine of the algorithm of the lamp energising control part shown in pie graph 7 and task process that microprocessor is performed in fig. 8.In fig. 8, step S203 to S210 is identical with the step S102 to S109 of Fig. 6 respectively.Process shown in Fig. 8 also performs when the task process timing occurred at a certain time interval arrives.If start this task process, then first in step s 201, relative to the current regular dutycycle Dn of rotative speed N computing of combustion engine.Then, when judging in step S202 whether battery charging control section is just accelerated, charging stops controlling.When charging stops controlling when its result is judged as not accelerating, enter step S203.When being judged as just accelerating in step S202, charging stops controlling, enter step S211, dutycycle Da when accelerating to control relative to rotative speed N computing, computing has dutycycle Da when charging when being about to start to accelerate stops the acceleration of the value of more than the regular dutycycle before control to control, in step S212, dutycycle Da when making the dutycycle of the on-off of lamp driving switch be the acceleration control calculated, terminates this process.Embodiment shown in other with Fig. 6 is identical.
When based on algorithm shown in Fig. 8, form regular dutycycle arithmetical organ 14 by step S201, form engine retard decision mechanism 12 by step S203 and S205.In addition, dutycycle selection mechanism 16 is formed by step S204, S209, S210 and S212.And then, time meter control mechanism (not illustrating in the figure 7) is formed by step S206 and S207, the described time meter control mechanism rotative speed be controlled to by time meter 13 when driving engine arranges setting-up time to time meter 13 and starts its measurement when dropping to setting rotative speed Ns, emptied by time meter 13 when during carry out measure the measurement action of setting-up time at time meter 13, rotative speed N becomes and sets more than rotative speed Ns.In addition, dutycycle determination means 19 when acceleration controls is formed by step S211.
Fig. 9 represents in other embodiments of the present invention, the FBD of an example of the function block formed on software when using microprocessor to form lamp energising control part 8.In the present embodiment, lamp energising control part 8 is configured to, monitor the voltage of battery when charging stops controlling when carrying out accelerating, dutycycle when determining to accelerate to control according to cell pressure, when being about to start to accelerate so that the light quantity of head light is remained on charging stop controlling before light quantity.Therefore, in the battery energising control part 8 shown in Fig. 9, the battery voltage detection mechanism 20 detecting cell pressure is set, when when carrying out acceleration control, charging stops controlling, during by accelerating to control, dutycycle determination means 19 is relative to the cell pressure retrieval mapping graph detected by battery voltage detection mechanism 20, dutycycle when determining to accelerate to control.Other point is same with the example shown in Fig. 7.
Represent the routine of the algorithm of the lamp energising control part shown in pie graph 9 and task process that microprocessor is performed in Fig. 10.In Fig. 10, the step S101 of step S301 and Fig. 6 is identical, and step S303 to S310 is identical with the step S101 to S109 of Fig. 6 respectively.Process shown in Figure 10 also performs when the task process timing occurred at a certain time interval arrives.If start this task process, then first in step S301, relative to the current regular dutycycle Dn of rotative speed N computing of combustion engine.When then judging whether battery charging control section is just accelerated in step s 302, charging stops controlling.When charging stops controlling when its result is judged as not accelerating, enter step S303.When being judged as in step s 302 just accelerating, charging stops controlling, enter step S311, relative to cell pressure computing have in order to the light quantity of head light is remained on certain and the acceleration of the value of necessity controls time dutycycle Da, in step S312, dutycycle Da when making the dutycycle of the on-off of lamp driving switch be the acceleration control calculated, terminates this process.Embodiment shown in other with Fig. 6 is identical.
When based on algorithm shown in Figure 10, form regular dutycycle arithmetical organ 14 by step S301, form engine retard decision mechanism 12 by step S303 and S305.In addition, dutycycle selection mechanism 16 is formed by step S304, S309, S310 and S312.And then, time meter control mechanism is formed by step S306 and S307, the described time meter control mechanism rotative speed be controlled to by time meter 13 when driving engine arranges setting-up time to time meter 13 and starts its measurement when dropping to setting rotative speed Ns, emptied by time meter 13 when during carry out measure the measurement action of setting-up time at time meter 13, rotative speed N becomes and sets more than rotative speed Ns.In addition, dutycycle determination means 19 when acceleration controls is formed by step S311.
The FBD of one example of the function block that Figure 11 is formed when being and representing and use microprocessor to form lamp energising control part 8 in other embodiments of the present invention on software.Be provided with rotative speed decision mechanism 21 in the present embodiment, judge according to the rotative speed detected by rotative speed testing agency 11 whether the rotative speed of driving engine is more than setting value.In addition, be provided with the battery voltage detection mechanism 20 detecting cell pressure, regular dutycycle arithmetical organ 14 is configured to, when the rotative speed of combustion engine is less than the regular dutycycle Dn of rotative speed computing relative to combustion engine during setting value, when the rotative speed of combustion engine is more than setting value relative to the regular dutycycle Dn of cell pressure computing.Other point and the lamp of the embodiment shown in Fig. 5 are energized in the same manner as control part 8 and form.
Represent the routine of the algorithm forming the lamp energising control part shown in Figure 11 and task process that microprocessor is performed in fig. 12.In fig. 12, step S402 and step S404 to S411 is identical with the step S101 to S109 of Fig. 6 respectively.Process shown in Figure 12 also performs when the task process timing occurred at a certain time interval arrives.If start this task process, then first in step S401, judge whether the rotative speed N of driving engine is setting more than rotative speed N1.When being consequently judged as rotative speed N less than setting value N1, in step S402, retrieve mapping graph and the regular dutycycle Dn of computing relative to current rotative speed N.In addition, when being judged as that in step S401 rotative speed N is more than setting value N1, relative to cell pressure retrieval mapping graph in step S403, the regular dutycycle Dn of computing.Step 404 is entered after execution step S402 or 403.Embodiment shown in other with Fig. 6 is identical.
When based on algorithm shown in Figure 12, form rotative speed decision mechanism 21 by step S401, form regular dutycycle arithmetical organ 14 by step S402 and S403.In addition, form engine retard decision mechanism 12 by step S404 and S406, form dutycycle selection mechanism 16 by step S405, S409, S410 and S411.And then, time meter control mechanism is formed by step S406 and S407, the described time meter control mechanism rotative speed be controlled to by time meter 13 when driving engine arranges setting-up time to time meter 13 and starts its measurement when dropping to setting rotative speed Ns, emptied by time meter 13 when during carry out measure the measurement action of setting-up time at time meter 13, rotative speed N becomes and sets more than rotative speed Ns.
If embodiment is as shown in FIG. 11 and 12 such, the control part 8 that is energized by lamp is in advance configured to, when the rotative speed of combustion engine is less than the regular dutycycle Dn of rotative speed computing relative to combustion engine during setting value, when the rotative speed of combustion engine is more than setting value according to the regular dutycycle Dn of cell pressure computing, even if then in the traveling of vehicle, when carrying out any control (when such as accelerating, charging stops controlling) of the reason as the voltage drop making battery, the light quantity of head light 3 also can be carried out to remain on certain control.
No matter when as automotive bicycle etc., when the state making head light lighting all must be remained round the clock under steam, or be configured to make head light lighting when starting or be configured to make head light lighting while the starting completing combustion engine while being closed by key switch.In such IC engine-powered vehicles, when starting combustion engine after making vehicle stop for a long time under low-temperature condition, owing to carrying out the hot car of idling after by engine starting during of short duration, so the dutycycle that the PWM of lamp drive current controls is set to larger value and makes the light quantity of head light increase, if then engine warms, then the rotative speed of driving engine drops to idling rotative speed, so the dutycycle that the PWM of lamp drive current controls is switched to less value and makes the light quantity of head light reduce.In contrast, when immediately driving engine being restarted after making engine stop, owing to not carrying out the hot car of idling, so the dutycycle that the PWM of lamp drive current controls is switched to less value, by lamp lighting under the state of dim light.Like this, when being started under the state comparatively warmed up by driving engine and starting under colder state, the light quantity of the head light after just starting is not both bad, becomes the reason bringing awkward sense to user.
So, in optimal way of the present invention, lamp energising control part Duty ratio control when starting, by dutycycle when being set as the first lighting with the value larger than regular dutycycle during idling to the dutycycle of the on-off when head light energising at first after the starting of combustion engine completes.
If formed like this, and though then engine starting time temperature, can both make driving engine just started after the light quantity of head light identical, so can prevent user from entertaining awkward sense.
Figure 13 represents in other embodiments of the present invention, the FBD of an example of the function block formed on software when using microprocessor to form lamp energising control part 8.In the present embodiment, lamp energising control part 8 Duty ratio control when starting, by dutycycle when being set as the first lighting with the value larger than regular dutycycle during idling to the dutycycle of the on-off when head light energising at first after the starting of combustion engine completes.Therefore, be provided with dutycycle determination means 23 when starting completes decision mechanism 22 and first lighting in the present embodiment, described starting completes decision mechanism 22 and judges whether the starting of combustion engine completes according to the rotative speed of the driving engine detected by rotative speed testing agency 11, during described first lighting dutycycle determination means 23 by started decision mechanism be judged as that the starting of driving engine completes time, dutycycle Dst when determining that there is the first lighting of the value larger than regular dutycycle Dni during idling.Other structure, except the different point of the function of dutycycle selection mechanism 16, is same with the example shown in Fig. 5.
The dutycycle selection mechanism 16 used in the present embodiment after the starting of combustion engine completes at first to when head light energising, when selecting that there is the first lighting of the value larger than the regular dutycycle during idling dutycycle Dst as the on-off of lamp driving switch 7 dutycycle and export.Dutycycle selection mechanism 16 is also being judged as that by engine retard decision mechanism 12 combustion engine is not in deceleration, although or be judged as be slow down in but the rotative speed of driving engine does not drop to setting speed, when time meter 13 does not carry out timing action, the regular dutycycle Dn that selection is calculated by regular dutycycle arithmetical organ 14 is as the connection of lamp driving switch 7, disconnect dutycycle D and export, when being judged as that by engine retard decision mechanism 12 in the deceleration at driving engine, its rotative speed drops to setting speed, when time meter 13 carries out timing action, select setting dutycycle Ds as the connection of lamp driving with switch 7, disconnect dutycycle D and export.
Represent the routine of the algorithm forming the lamp energising control part 8 shown in Figure 13 and task process that microprocessor is performed in fig. 14.In fig. 14, step S504 to S512 is identical with the step S101 to S109 of Fig. 6 respectively.Process shown in Figure 14 also performs when the task process timing occurred at a certain time interval arrives.If start this task process, then, first in step S501, judge whether according to rotative speed N the start-up function just carrying out driving engine.When being consequently judged as in start-up function, entering step S502, judging whether the starting of driving engine completes.When being consequently judged as that the starting of driving engine completes, enter step S503, dutycycle Dst when making the dutycycle of the on-off of lamp driving switch be first lighting, terminates this process.When being judged as not being the starting of driving engine in step S501, enter step S504.Embodiment shown in other with Fig. 6 is identical.
When based on algorithm shown in Figure 14, form starting by step S501 and S502 and complete decision mechanism 22, dutycycle determination means when forming first lighting by step S503.In addition, form regular dutycycle arithmetical organ 14 by step S504, form engine retard decision mechanism 12 by step S505 and S507, form dutycycle selection mechanism 16 by step S503, S506, S510, S511 and S512.
If formed as in the present embodiment, no matter then due to temperature during engine starting, can both make driving engine just started after the light quantity of head light identical, so can prevent user from entertaining awkward sense.
In the respective embodiments described above, setting-up time (time that when carrying out engine retard, lamp energising controls) does not need always certain, can suitably change yet.The control part that is such as energized by lamp is configured to, the voltage of the battery when controlling according to lamp energising during beginning engine retard changes the setting-up time that time meter is measured, the voltage of battery when controlling to make the lamp energising when starting engine retard extends setting-up time (time that when carrying out engine retard, lamp energising controls) when being more than setting value, when starting engine retard lamp energising control when the voltage of battery shorten setting-up time less than during setting value.
When deterioration of battery or battery fully do not carried out by using for a long time its charging state under, the terminal voltage likely becoming battery when idling is in the state not reaching setting value.In such a state, the time that when carrying out engine retard, lamp energising controls preferably is shortened.On the other hand, there is no deterioration at battery, battery be in fully charging state under, even if extend carry out vehicle stop time Duty ratio control time also passable.Thus, if the voltage of the battery when controlling according to lamp energising during beginning engine retard as described above changes the setting-up time making time meter measure in advance, when then can not carry out engine retard with applying larger burden to battery, lamp energising controls, the flicker of head light can be prevented, during specified time, the light quantity of head light is remained on higher state.
In addition, the rotative speed of the driving engine shown in Fig. 2 and Fig. 3 and the numerical value of dutycycle is an example only, and they also suitably can get other numerical value.Such as, in the minimizing sharply of light quantity preventing head light, preferably regular dutycycle Dn during idling is set in the scope of 50 ~ 80 ［ % ］, regular dutycycle Dn time 2000 ［ r/min ］ is set in 81 ~ 90 ［ % ］.
In the above-described embodiment, the control part that is energized by lamp is configured to, by carrying out on-off control with the setting dutycycle of the large value of the regular dutycycle during idling be set as than combustion engine to lamp driving switch, when carrying out engine retard, lamp energising controls, but the control part that also lamp can be energized is configured to, when carrying out engine retard by lamp driving switch being remained on on-state (making the dutycycle of the on-off of lamp driving switch be 100%), lamp energising controls.
Due in the IC engine-powered vehicles that the present invention charges to battery in the output of the magnet-type alternating current generator by having the characteristic that when flowing through larger load current output voltage declines, the charging of battery not only can be carried out without barrier when the low speed rotation of driving engine, and can prevent the light quantity of head light in the process that declines towards idle speed at the rotative speed of driving engine from reducing sharp, so the performance being conducive to IC engine-powered vehicles improves, the utilizability in industry is large.
Claims (15)
1. the power supply unit control setup of an IC engine-powered vehicles, possess: battery charging control section, control the charging possessing the above-mentioned battery of the power supply unit of the IC engine-powered vehicles of magnet-type alternating current generator and battery, above-mentioned magnet-type alternating current generator is by the internal combustion engine drive driving vehicle, and above-mentioned battery is charged by the output of above-mentioned magnet-type alternating current generator; Lamp driving switch, by from above-mentioned battery to the head light of above-mentioned vehicle supply lamp drive current on-off; Lamp energising control part, make to be set as that being remained on by above-mentioned lamp drive current can be regular dutycycle from the dutycycle of the on-off of the lamp driving switch of the value of the scope of the output voltage more than terminal voltage of above-mentioned magnet-type alternating current generator generation battery, and carry out based on on-off control by this regular dutycycle to above-mentioned lamp driving switch, PWM control is carried out to above-mentioned lamp drive current, it is characterized in that
In the process that its rotative speed declines towards idling rotative speed when the deceleration of above-mentioned combustion engine, the on-off of the lamp driving switch that above-mentioned lamp energising control part interrupts under above-mentioned regular dutycycle controls, when only carrying out engine brake during the limited time, lamp energising controls, and becomes to make the lamp drive current of decline and necessity in order to suppress the light quantity of above-mentioned head light flow into above-mentioned head light by above-mentioned lamp driving switch control rule.
2. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 1, is characterized in that,
Above-mentioned lamp energising control part is by carrying out on-off control with the setting dutycycle of the large value of regular dutycycle when being set as the idling than above-mentioned combustion engine to above-mentioned lamp driving switch, and when carrying out above-mentioned engine brake, lamp energising controls.
3. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 1, is characterized in that,
Above-mentioned lamp energising control part by above-mentioned lamp driving switch is remained on on-state, lamp energising control when carrying out above-mentioned engine brake.
4. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 2, is characterized in that,
When the rotative speed of above-mentioned combustion engine drops to setting rotative speed, above-mentioned lamp energising control part makes time meter start the measurement of setting-up time, carry out the measurement of setting-up time at above-mentioned time meter during, the dutycycle of the on-off of above-mentioned lamp driving switch is fixed on above-mentioned setting dutycycle.
5. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 4, is characterized in that,
Above-mentioned setting dutycycle is set to equal with the regular dutycycle under above-mentioned setting rotative speed.
6. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 4, is characterized in that,
When the measurement of above-mentioned setting-up time completes, above-mentioned lamp energising control part makes the dutycycle of the on-off of above-mentioned lamp driving switch gradually change towards regular dutycycle during above-mentioned idling.
7. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 1, is characterized in that,
Duty ratio control when above-mentioned lamp energising control part starts, the dutycycle when dutycycle at first to the above-mentioned on-off when above-mentioned head light energising after the starting of above-mentioned combustion engine completes being set in the first lighting with the value larger than regular dutycycle during above-mentioned idling.
8. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 1, is characterized in that,
When detect carried out the operation of above-mentioned vehicle acceleration time, when above-mentioned battery charging control section is accelerated charging stop control, stop the charging of above-mentioned battery;
When carrying out above-mentioned acceleration, charging stops controlling, Duty ratio control when above-mentioned lamp energising control part accelerates, the dutycycle when acceleration of the value more than regular dutycycle above-mentioned dutycycle being increased to when being set as being about to start to accelerate before charging stopping control controlling.
9. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 8, is characterized in that,
The mapping graph of relation when above-mentioned lamp energising control part uses charging when providing acceleration to stop the rotative speed of combustion engine when controlling and above-mentioned acceleration to control between dutycycle, by retrieving above-mentioned mapping graph relative to the rotative speed of above-mentioned combustion engine, dutycycle when determining that above-mentioned acceleration controls.
10. the power supply unit control setup of IC engine-powered vehicles as claimed in claim 8, is characterized in that,
Regular dutycycle before above-mentioned lamp energising control part stops controlling by the charging when being about to start above-mentioned acceleration adding certain value, deciding dutycycle when above-mentioned acceleration controls.
The power supply unit control setup of 11. IC engine-powered vehicles as claimed in claim 8, is characterized in that,
When carrying out above-mentioned acceleration, charging stops controlling, above-mentioned lamp energising control part monitors the voltage of above-mentioned battery, dutycycle when determining that above-mentioned acceleration controls according to cell pressure, when being about to start to accelerate the light quantity of above-mentioned head light to be remained on, charging stops the light quantity before control.
The power supply unit control setup of 12. IC engine-powered vehicles as claimed in claim 1, is characterized in that,
When the rotative speed of above-mentioned combustion engine is less than setting value, above-mentioned lamp energising control part is relative to the above-mentioned regular dutycycle of the rotative speed computing of above-mentioned combustion engine, when the rotative speed of above-mentioned combustion engine is more than setting value, above-mentioned lamp energising control part is relative to the above-mentioned regular dutycycle of above-mentioned cell pressure computing.
13. 1 kinds of IC engine-powered vehicles, is characterized in that,
Possesses power supply unit control setup according to claim 1.
14. 1 kinds of IC engine-powered vehicles, is characterized in that,
Possesses power supply unit control setup according to claim 2.
15. 1 kinds of IC engine-powered vehicles, is characterized in that,
Possesses power supply unit control setup according to claim 3.
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| JP2011145821 | 2011-06-30 | ||
| JP2011-145821 | 2011-06-30 | ||
| PCT/JP2012/004228 WO2013001831A1 (en) | 2011-06-30 | 2012-06-29 | Power supply unit control device for internal combustion engine driven vehicle and internal combustion engine driven vehicle equipped with power supply unit control device |
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| JP2018006187A (en) * | 2016-07-04 | 2018-01-11 | 株式会社オートネットワーク技術研究所 | Driving device |
| CN106773452B (en) * | 2017-02-17 | 2022-06-14 | 常熟博兴光电技术有限公司 | Camera light source linkage control digital power supply |
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- 2012-06-29 US US14/124,575 patent/US9216685B2/en active Active
- 2012-06-29 JP JP2013522457A patent/JP5755740B2/en active Active
- 2012-06-29 WO PCT/JP2012/004228 patent/WO2013001831A1/en active Application Filing
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| JP2004319189A (en) * | 2003-04-14 | 2004-11-11 | Matsushita Electric Works Ltd | Vehicular discharge lamp lighting device |
| WO2008102378A2 (en) * | 2007-02-23 | 2008-08-28 | India Nippon Electricals Limited | A device and method for efficient power utilization |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2727768B1 (en) | 2017-08-16 |
| WO2013001831A1 (en) | 2013-01-03 |
| US9216685B2 (en) | 2015-12-22 |
| US20140142808A1 (en) | 2014-05-22 |
| EP2727768A4 (en) | 2015-02-25 |
| JP5755740B2 (en) | 2015-07-29 |
| EP2727768A1 (en) | 2014-05-07 |
| JPWO2013001831A1 (en) | 2015-02-23 |
| CN103796873A (en) | 2014-05-14 |
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